Improvement in boot-crimps



3 Sheets--Sheet1.

P. SANDERS.

Boot-Crimps. Na. 133,339. v Patented Nov.26,1872.

AM. PHOTU-L/THOG/M PH/U comffosaufius's PROCESS.)

3 Sheets--Sheet 2.

P SANDERS.

Boot-Crimps.

@ Patented Nov. 26,1872.

UNITED STATES PATENT QFFICE.

PETER SANDERS, OF MIDDLETOWN, PENNSYLVANIA.

IMPROVEMENT m Boot-camps.

Specification forming part of Letters Patent No. 133,339, dated November26, 18?2.

To all whom it may concern:

Be it known that I, PETER SANDERS, of Middletown, in the county ofDauphin and State of Pennsylvania, have invented a new and ImprovedBoot-Crimp; and I do hereby declare that the following is a full, clear,and exact description thereof, reference being had to the accompanyingdrawing making part of this specification, in which- Figure 1, Plate 1,is an elevation of one side of the machine, showing the parts inposition for crimping; Fig.2, Plate 1, is a top view of the same; Fig.3, Plate 2, is a view of the same parts shown in Fig. 1, indicating thetree and its frame raised out of the clamping-boards; Fig. 4, Plate 2,is a section taken through one of the clamping-ears; Fig.5, Plate 2, isa front view of Fig. 4; and Fig. 6, Plate 3, is a section takenvertically and transversely through the machine.

Similar letters of reference indicate corresponding parts in the severalfigures.

This invention relates to certain novel improvements on boot-crimps,whereby I am enabled to crimp fine or coarse leather of any requiredsize in a very effectual manner, as will be hereinafter explained.

The following description of my invention will enable others skilled inthe art to understand it.

In the accompanying drawing, A represents the base of the machine, intowhich two laterally-movable blocks, B B, are titted, carrying twovertical jaws, C (3, between which the leather is crimped. The jaws C Oare rigidly secured to the movable blocks B B, and these jaws are heldat any desired distance apart by means of a bolt, 1), on which is a nut,b, and also by means of bolts a, which latter pass through the blocks BB and a rib, A, which rises fromv the base A, and on them nuts to, asshown in the drawing. The tree D, on which the leather is stretched andcrimped, is applied to an open frame, D, which is pivoted at d to ears 0c on the jaws O, and provided with a lever-handle, D. This frameDvibrates in the plane of the space between the jaws 0, so that the treeD with leather on it, can be forced down between said jaws, as indicatedin Fig. 1. Within the frame D is a right-angular stretcher, G, which isconnected to this frame by means of screws 9, to which handled nuts areapplied. One

D according to. the size of the leather to be crimped. Each arm of thestretcher Gr presents beveled and serrated sides 8' s, which, with theserrated forks N, allow the edges of the leather to be securely fastenedto the stretcher, as indicated in Fig. 6, where the teeth t of a forkare represented as biting a piece of leather against the serrated sidessof the stretcher. For holding the edges of the leather at the angle ofthe stretcher I employ two ears, J J, which'rare pivoted at t, andwhich, respectively, consist oftwo parts, j j, pivoted together at r.The part j fits into the part j, and the leather is griped and heldbetween toothed edges 1' r on both piece-s A piece of leather of theproper size and shape is applied around the tree D and confined by meansof the forks N and ears J. Then, by means of the nuts on screws 9 g, thestretcher is forcibly moved away from the tree D which stretches theleather thereon. The frame D is then forced down so as to bring the treebetween the two jaws O C, after which the nut b on the bolt 12 may beset up so as to compress the jaws more firmlyagainst the sides of theleather on the tree.

Having described myinvention, what I claim as new, and desire to secureby Letters Patcut, is-

1. The arrangement, within the open vibrat in g tree andframe D D, of astretcher, G, which is adjustable by means of bolts and nuts 9 g, incombination with clamps O O, substantially as described.

2. The jaws G and blocks B, combined with the bolts a a and their nutsale, and with the bolt b and its nut I), substantially as described.

3. The pivoted care J, each one of which is composed of two gripingportions, j j, pivoted together, substantially as described.

PETER SANDERS.

Witnesses:

Gno. H. Lnnrmnr, JNo. A. VVITMAN.

